Re: I LOVE RAID 5!!!!!!!!!!!!!!!!!!!!!

Hi. I did this test in my box, I wrote 100 MB in two filesystem, one of them was in RAID5 and another not. The two filesystem was over the same kind of disk. Well I got this values: Filesystem without raid5: 8500 KB/s Filesystem with raid5: 2200 KB/s In fact, the write throughput is ones of cost. Maybe, you should do your own test and evaluate the results. Here there are two tip how you can measure the write throughput. if you use to be a raw devices time ( dd if=/dev/disk01 of=/dev/disck02 ) otherwise time ( cp file1 file2 ) El Wed, 01 Nov 2000, malc_p@my-deja.com escribi': > ALL RIGHT. Now I've got your attention, please ignore the subject line. > What I need to know (in order to overrule an IT manager who is > determined to install a RAID setup and won't listen to any arguments > against) is exactly WHAT the disadvantages / advantages are between > using RAID and JBOD. I tried earlier but the only reply I got was from > one Mr. O. Clown (thanx, btw). > I think I need to push JBOD but there's a huge difference between gut > feeling and reasoned debate. > Exactly why does Art hate RAID 5 so much? He keeps saying NO RAID 5! NO > RAID 5! etc. ad nauseam but WHY? > > TIA > > MAlc > > > Sent via Deja.com http://www.deja.com/ > Before you buy. -- Francisco Huezo Administrador de Base de Datos Ministerio de Hacienda Proyecto SAFI Cond. Tres Torres, T-2, N-8 San Salvador, El Salvador Tel. (503) 225-3700 ext 102 Cel: (503) 830-7469 ------------------------------------------------- Brainbench Certified Power Builder 6.0 Informix DBA Unix Administration ( General ) http://www.brainbench.com/transcript.jsp?pid=23525 -------------------------------------------------- Moving to Linux is more evolution than revolution.